Pith Number

pith:FFHX4KMD

pith:2011:FFHX4KMDNY6PK4RQFZXWRFTD6L

not attested not anchored not stored refs pending

A new Planetary Nebula in the outer reaches of the Galaxy

A. Mampaso, A. Zijlstra, C. Giammanco, D. J. Frew, J. E. Drew, J. E. Lindberg, K. Viironen, L. Sabin, M. Rodr\'iguez, P. A. Wilson, R. Greimel, R. L. M. Corradi, S. E. Sale, T. Liimets

arxiv:1105.0157 v1 · 2011-05-01 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FFHX4KMDNY6PK4RQFZXWRFTD6L}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:02:10.574963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

294f7e29836e3cf572302e6f689663f2ea10f3f20c4e671fc72bc08d781e6833

Aliases

arxiv: 1105.0157 · arxiv_version: 1105.0157v1 · doi: 10.48550/arxiv.1105.0157 · pith_short_12: FFHX4KMDNY6P · pith_short_16: FFHX4KMDNY6PK4RQ · pith_short_8: FFHX4KMD

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/FFHX4KMDNY6PK4RQFZXWRFTD6L \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 294f7e29836e3cf572302e6f689663f2ea10f3f20c4e671fc72bc08d781e6833

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "511676e9d1af2be323e380948dc44c9efdb5755c29e141e4c415f6cb0c8324d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-05-01T09:51:18Z",
    "title_canon_sha256": "7fb97403a1ebd80e7df9ad8efc0acc20528cc1b6a981514ebae60aa4ea319a35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.0157",
    "kind": "arxiv",
    "version": 1
  }
}